For her new role in Netflix’s Santa Clarita Diet, Drew Barrymore says she felt a responsibility to lose 20 pounds to play a woman on a high-protein diet.

“If a woman was really eating just protein and nothing else she would lose weight,” she said on the Today show. “It gave me this intense responsibility that I said I want to fulfill to be Sheila and then there was like no excuses.”

“It’s funny, it’s called Santa Clarita Diet but it is more than that for me with her,” she said. “It is doing her hair and putting on nails and accessorizing. Sheila has reminded me along way that sometimes putting a little into yourself does make you feel a little more alive. Isn’t it ironic?”